AUDIO AND VISUAL SYSTEM (w/o Navigation System) > Radio Receiver Communication Error

for Preparation Click here


INSPECTION PROCEDURE

1.IDENTIFY COMPONENT SHOWN BY SUB-CODE


  1. Enter diagnostic mode.


    E110917E24

  1. Press preset switch "2" to change the mode to "Detailed Information Mode".

  1. Identify the component shown by the sub-code.

    HINT:
    1. The sub-code "P190" shown in the above example indicates the radio receiver assembly.
    2. For details of the DTC display, refer to DTC Check/Clear (Click here).


NEXT


2.CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE

  1. Inspect the power source circuit of the component shown by the sub-code.
    If the power source circuit is operating normally, proceed to the next step.

    Component Table 
    Component
    		Proceed to
    Stereo component amplifier assembly (440)
    		Stereo component amplifier power source circuit (Click here)
    Multi-media interface ECU assembly (388)
    		Multi-media interface ECU power source circuit (Click here)


NEXT


3.INSPECT RADIO RECEIVER ASSEMBLY


    E222733E01

  1. Disconnect the radio receiver assembly connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H51-5 (ATX+) - H51-15 (ATX-)
    		Always
    		60 to 80 Ω
    H53-9 (TXM+) - H53-10 (TXM-)
    		Always
    		60 to 80 Ω

    Text in Illustration 
    *a
    		Component without harness connected
    (Radio Receiver Assembly)



NG
REPLACE RADIO RECEIVER ASSEMBLY (Click here)
OK


4.CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - COMPONENT SHOWN BY SUB-CODE)

HINT:
  1. Start the check from the circuit that is near the component shown by the sub-code first.
  2. For details of the connectors, refer to Terminals of ECU (Click here).



  1. Referring to the following AVC-LAN wiring diagram, check the AVC-LAN circuit between the radio receiver assembly and component shown by the sub-code.

    1. Disconnect all connectors between the radio receiver assembly and component shown by the sub-code.



    2. Check for an open or short in the AVC-LAN circuit between the radio receiver assembly and component shown by the sub-code.

      OK:
      There is no open or short circuit.


      E195563E12



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.REPLACE COMPONENT SHOWN BY SUB-CODE

  1. Replace the component shown by the sub-code with a known good one and check if the same problem occurs again.

    OK:
    Malfunction disappears.



NG
REPLACE RADIO RECEIVER ASSEMBLY (Click here)
OK

END